If \( \mathrm{A} \) and \( \mathrm{B} \) are matrices of same order...

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If \( \mathrm{A} \) and \( \mathrm{B} \) are matrices of same order, then \( \left(\mathrm{AB}^{\prime}-\mathrm{BA}^{\prime}\right) \) is a
(A) skew symmetric matrix (B) null matrix
\( \mathrm{P} \)
(C) symmetric matrix
(D) unit matrix
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